code: def make_program() -> lp.Program:
      program = lp.Program("hello_world")
  
      node = lp.PyClassNode(HelloWorld)
      program.add_node(node, label="hello_printer")
      return program
  
file_path: launchpad/launchpad/launch/xm_docker/launch_test.py
imports: import os
  from absl.testing import absltest
  import launchpad
  from launchpad.nodes.python import xm_docker
label_desc: Use image node_id 1 for calling a global function with example usage: make_program() and returns: program